Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795
   Orthogastropoda Ponder & Lindberg, 1995 see Subclass Orthogastropoda Ponder & Lindberg, 1995
     Apogastropoda Salvini-Plawen & Haszprunar, 1987
       Heterobranchia Burmeister, 1837 see Superorder Heterobranchia Burmeister, 1837
         Euthyneura Spengel, 1881
           1 Nudibranchia Cuvier, 1814 see Order Nudibranchia Cuvier, 1814
           2 Pleurocoela see Clade Euopisthobranchia Jörger, Stöger, Kano, Fukuda, Knebelsberger & Schrödl, 2010
           3 Sacoglossa Ihering, 1876 see Order Sacoglossa Ihering, 1876
           4 Pulmonata Cuvier, 1814 see Order Pulmonata Cuvier, 1814